Jackson County, South Dakota

Jackson County
Location within the U.S. state of South Dakota
South Dakota's location within the U.S.
Coordinates: 43°42′N 101°38′W / 43.7°N 101.64°W / 43.7; -101.64
Country United States
State South Dakota
Founded1883 (created)
1915 (organized)
SeatKadoka
Largest communityKadoka
Area
  Total
1,871 sq mi (4,850 km2)
  Land1,864 sq mi (4,830 km2)
  Water7.4 sq mi (19 km2)  0.4%
Population
 (2020)
  Total
2,806
  Estimate 
(2024)
2,737
  Density1.5/sq mi (0.58/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional districtAt-large
Washabaugh County was merged into Jackson County in 1983

Jackson County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,806. Its county seat is Kadoka. The county was created in 1883, and was organized in 1915. Washabaugh County was merged into Jackson County in 1983.